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Mounted Bandpass Colored Glass Filters


  • Mounted Ø25 mm Filters
  • Bandpass Filters for the UV, Visible, or IR
  • Broadband Counterpart to Dielectric Filters

FGUV5M

FGB25M

FGB37M

FGB67M

Mounted in TRF90
Lockable Flip Mount

Related Items


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Bandpass Filter Selection
Part #Bandpass Region
FGUV5M240 - 395 nm
FGUV11M275 - 375 nm
FGB25M315 - 445 nm
715 - 1095 nm
FGS900M315 - 710 nm
FGUVM325 - 385 nm
FGB37M335 - 610 nm
FGB67M900 - 1375 nm

Features

  • Ø25 mm Filters
  • Bandpass Regions Between 240 and 1375 nm
  • SM1-Threaded Mount, Engraved with Part Number and Description
  • Broadband Counterpart to Thin Film Dielectric Filters
  • Kit Includes Selected Bandpass and Longpass Filters

Thorlabs' Mounted Bandpass Colored Glass Filters are manufactured from different colors of Schott glass and are intended for use in a wide variety of applications. The SM1-mounted (1.035"-40), Ø25 mm filters will thread into our filter wheels or any of our lens tube accessories. The housing is engraved with the part number and intended wavelength range for easy identification. These filters are also available unmounted, and a selection of them is available with AR coatings. If the bandpass filter you require is not listed here, it may be available in an unmounted version.

Several of the colored glasses used for our filters are fluorescent at certain wavelengths; for more details on how this may affect certain applications, contact Technical Support. For narrowband sources, we recommend our dielectric bandpass filters.

Colored Glass Filter Kit
Thorlabs offers a boxed filter kit containing a selection of our most popular bandpass and longpass filters. For the specific filters included in the kit, please see the presentation at the bottom of this webpage.

Storage Box
If you need a safe, convenient place to store loose filters, consider our KT01 Storage Box, a lockable foam case that holds up to ten filters. Please see below for more information.

Colored Glass Selection Guide
BandpassLongpass
MountedUnmountedAR CoatedMountedUnmounted
Engineering Drawing
General Specifications
MaterialSchott Colored Glass
Diameter25 mm
Clear Aperture80% of Diameter
Thickness2 mm
Thickness Tolerance+0.0 mm/-0.4 mm
Surface Quality40-20 Scratch-Dig
Surface Flatness<λ @ 633 nm
Wedge<3 arcmin


Item #Schott GlassBandpass Region
FGUV5MUG5240 - 395 nm
FGUV11MUG11275 - 375 nm
FGB25MBG3315 - 445 nm
715 - 1095 nm
FGS900MKG3315 - 710 nm
FGUVMUG1325 - 385 nm
FGB37MBG40335 - 610 nm
FGB67MBG36900 - 1375 nm

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Mounted Bandpass Colored Glass Filters: 240 - 395 nm

FGUV5M Transmission Curve
Click to Enlarge
Click Here for Raw Data
  • Fabricated from 2 mm Thick UG5 Schott Glass
  • 25 mm Round Filter in SM1-Threaded Mount

Transmission (including surface reflections) is plotted as a function of wavelength to the right. The shaded region, which denotes the spectral range in which the transmission is >50% of the maximum transmission, represents the range for which we recommend using this colored glass filter.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
FGUV5M Support Documentation
FGUV5MØ25 mm UG5 Colored Glass UV-Passing Filter, SM1-Threaded Mount
$88.25
Today

Mounted Bandpass Colored Glass Filter: 275 - 375 nm

FGUV11M Transmission Curve
Click to Enlarge
Click Here for Raw Data
  • Fabricated from 2 mm Thick UG11 Schott Glass
  • Ø25 mm Round Filter in SM1-Threaded Mount

Transmission (including surface reflections) is plotted as a function of wavelength to the right. The shaded region, which denotes the spectral range in which the transmission is >50% of the maximum transmission, represents the range for which we recommend using this colored glass filter.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
FGUV11M Support Documentation
FGUV11MØ25 mm UG11 Colored Glass UV-Passing Filter, SM1-Threaded Mount
$88.25
Today

Mounted Double Bandpass Colored Glass Filter: 315 - 445 nm and 715 - 1095 nm

FGB25M Transmission Curve
Click to Enlarge
Click Here for Raw Data
  • Fabricated from 2 mm Thick BG3 Schott Glass
  • 25 mm Round Filter in SM1-Threaded Mount

Transmission (including surface reflections) is plotted as a function of wavelength to the right. The shaded regions, which denote the spectral range in which the transmission is >50% of the maximum transmission, represent the ranges for which we recommend using this colored glass filter.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
FGB25M Support Documentation
FGB25MØ25 mm BG3 Colored Glass Bandpass Filter, SM1-Threaded Mount
$50.25
Today

Mounted Bandpass Colored Glass Filter: 315 - 710 nm

FGS900M Transmission Curve
Click to Enlarge
Click Here for Raw Data
  • Fabricated from 2 mm Thick KG3 Schott Glass
  • 25 mm Round Filter in SM1-Threaded Mount

Transmission (including surface reflections) is plotted as a function of wavelength to the right. The shaded region, which denotes the spectral range in which the transmission is >50% of the maximum transmission, represents the range for which we recommend using this colored glass filter.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
FGS900M Support Documentation
FGS900MØ25 mm KG3 Colored Glass Bandpass Filter, SM1-Threaded Mount
$50.25
Today

Mounted Bandpass Colored Glass Filter: 325 - 385 nm

FGUVM Transmission Curve
Click to Enlarge
Click Here for Raw Data
  • Fabricated from 2 mm Thick UG1 Schott Glass
  • 25 mm Round Filter in SM1-Threaded Mount

Transmission (including surface reflections) is plotted as a function of wavelength to the right. The shaded region, which denotes the spectral range in which the transmission is >50% of the maximum transmission, represents the range for which we recommend using this colored glass filter.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
FGUVM Support Documentation
FGUVMØ25 mm UG1 Colored Glass Bandpass Filter, SM1-Threaded Mount
$50.25
Today

Mounted Bandpass Colored Glass Filter: 335 - 610 nm

FGB37M Transmission Curve
Click to Enlarge
Click Here for Raw Data
  • Fabricated from 2 mm Thick BG40 Schott Glass
  • 25 mm Round Filter in SM1-Threaded Mount

Transmission (including surface reflections) is plotted as a function of wavelength to the right. The shaded region, which denotes the spectral range in which the transmission is >50% of the maximum transmission, represents the range for which we recommend using this colored glass filter.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
FGB37M Support Documentation
FGB37MØ25 mm BG40 Colored Glass Bandpass Filter, SM1-Threaded Mount
$64.25
Today

Mounted Bandpass Colored Glass Filter: 900 - 1375 nm

FGB67M Transmission Curve
Click to Enlarge
Click Here for Raw Data
  • Fabricated from 2 mm Thick BG36 Schott Glass
  • 25 mm Round Filter in SM1-Threaded Mount

Transmission (including surface reflections) is plotted as a function of wavelength to the right. The shaded region, which denotes the spectral range in which the transmission is >50% of the maximum transmission, represents the range for which we recommend using this colored glass filter.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
FGB67M Support Documentation
FGB67MØ25 mm BG36 Colored Glass Bandpass Filter, SM1-Threaded Mount
$50.25
Today

Colored Filter Kit

FGK01 ContentsBandpass Region
FGS900M 315 - 710 nm
FGB37M 335 - 610 nm
FGUVM 325 - 385 nm
FGL400M 400 - 1800 nm
FGL495M 495 - 1800 nm
FGL550M 550 - 1800 nm
FGL610M 610 - 1800 nm
FGL715M 715 - 1800 nm
FGL780M 780 - 1800 nm
FGL850M 850 - 1800 nm

The FGK01 Colored Glass Filter Kit contains ten of our most popular Ø25 mm round colored glass filters: three from our bandpass family, and seven from our longpass family. They are premounted in an SM1L03 lens tube that is engraved with the part number and bandpass region (for bandpass filters) or cut-on wavelength (for longpass filters), and ship in a KT01 Storage Box with labeled slots to aid organization. To purchase the unlabeled storage box separately, please see below.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
FGK01 Support Documentation
FGK01Ø25 mm Round Colored Glass Filter Kit, Mounted in SM1 Lens Tubes
$433.00
Today

Filter Storage Box

If you purchase individual filters and would like to have a safe, convenient place to store them when not in use, consider our KT01 Storage Box. This is the same storage box that our prepackaged filter kits ship with. The KT01 is designed to hold up to ten mounted Ø25 mm round filters.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
KT01 Support Documentation
KT01Storage Box for Mounted Ø1" (25 mm) Round Optics (Max. Capacity: 10)
$88.50
Today
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